User's Manual

PRODUCT DESCRIPTION
SKF Enlight Collect gateway
SKF Enlight Collect IMx-1 System
User Manual
Revision A
13 (84)
• Top, Power LED – furthest from the connector area:
o Green: gateway is powered
o Off: gateway is unpowered
• Lower, Status LED indicator
o Off: gateway is unpowered
o White: gateway is starting up
o Yellow: started but not yet connected to @ptitude Observer
o Green: gateway has started and is also connected to the software
1.4.3 Data and event time stamping
Each gateway has a backup power capacitor which will maintain the Real Time Clock
(RTC) setting for approximately one week if the device is disconnected from power.
1.4.4 Data acquisition scheduling
The gateway is configured with four data acquisition schedules by way of Interval
and Interval alarm settings for both the Scheduled Trend Storage and Scheduled
Dynamic Data Storage. These schedules are common to sensors associated with a
machine and are set in @ptitude Observer at the Machine Properties level, Enlight
Collect IMx-1 System tab, see 2.4.1.
Notes on scheduling and measurements:
To ensure sensor network stability, the gateway is a master to the multiple sensor
‘slaves’ so a sensor can never initiate a measurement nor the transfer of data to the
gateway. Measurement and measurement data transfer is always at the request of
the gateway and these requests are sent sequentially to the different sensors.
After a start-up the gateway will wait for the configured time period before requesting
the ‘first’ sensor measurements. If changes are made to the schedule and these
changes are synchronised, any ongoing measurement cycle for the machine will
complete and then the new schedule will be implemented. This process will take
account of when the last measurement cycle ran so, after a synchronisation, the wait
for ‘first’ data will usually be less than the scheduled period.
In addition, whenever a sensor receives a new configuration, for example and
including its initial configuration during commissioning, the gateway will then request
that the sensor make a set of overall measurements, without waiting for the
configured time period. This ensures a timelier receipt of data during commissioning
rather than having to wait for the scheduled time to elapse.
When the gateway first detects an alarm state change from a sensor on the machine,
that will trigger requests for representative TWF data from all sensors on that
machine.